Wrench.



G HAMILTON WRENCH.

APPLICATION FILED MAY 19, 1909.

5 f1 D Patented; fiat. 29, 29M

ANDREW a. GRAHAM co vumo-maocuwms. WASWNGTON. 0.;

ELI/IE3, G. HAMZLTGII, 0F RGCKPOR-T, INDIANA.

WRENGH.

esaeii.

Application filed May 19, 1969.

1'0 all whom it may concern:

Be it known that I, ELMER Gr. HAMILTON, a citizen of the United States, residing at Rockport, in the county of Spencer and State of lndiana, have invented new and useful Improvements in Wrenches, of which the following is a specification.

This invention is an improved wrench in which the sliding jaw on the stock is locked in an adjusted position by a ratchet pawl which is pivotally connected to the handle, the latter being pivotally connected to the stock so that the sliding jaw may be very readily and quickly adjusted and the handle and pawl exert leverage on the sliding jaw when the wrench is in use to cause the work to be firmly pressed between the fixed jaw and the sliding aw, as hereinafter described and claimed, the object of the invention being to provide an improved wrench of this character which is extremely simple and cheap, is very strong and durable and may be adjusted with a minimum expenditure of time and ellort.

In the accompanying drawings :Figure 1 is a side elevation of a wrench constructed in accordance with my invention. if 2 is partially an. elevation and partially a longitudinal sectional. view of the same.

'l he stock 1 of the wrench is provided at one end with the fixed aw 2. To the other end of the stock is pivotally connected a han dle as at at and the handle is provided on one side near the inner end of the stock with a pair of laterally extending lugs between which is pivoted the outer end. of a ratchet pawl 6, the pivot ot' the pawl being indicated at 7. In one side of the stock is a recess 8 in which is secured one end of a U-shaped spring 9, the free end of the spring bearing against the inner side of the ratchet pawl and forcing the same outwardly from the stock, as will be understood. The movable jaw 10 is provided on one side with arms 11 having openings through which the stock extends so that the movable jaw is guided and retained on the stock. The movable Specification of Letters Patent.

iatented Mar. 2%, title.

Serial No. 496,944.

jaw is also provided with a longitudinal opening 12 of suitable width to receive and permit the movement of the ratchet pawl and in the outer side of the said opening and at the inner end of said movable jaw are ratchet teeth 13 for engagement by the teeth of the ratchet pawl under the action of the spring 9.

it will be understood that by pressing the ratchet pawl inwardly against the tension of the spring 9 it may be disengaged from the teeth of the movable jaw so that the latter may be instantly usteu as may he required to cause it to engage the work and the spring immediately thereafter reengages the ratchet pawl with the teeth of the movable aw so as to lock the latter.

in using the wrench, the handle 3 is turned toward that side 01": the stock on which the ratchet pawl is disposed and hence it exerts leverage on the ratchet pawl which causes the latter to more lirmly engage the movable jaw with the work and hence the work is n'evented from slipping, the engagementof the jaws with the work being commensurate with the force exerted on the wrench and the leverage of the handle and ratchet pawl on the movable jaw.

What is claimed is:

'lhe herein described 'rench comprising a stock having a fixed jaw at one end, a handle pivoted to the inner end of the stock and having laterally extending lugs, a ratchet pawl pivotally mounted at its inner end between said lugs, the movable jaw on the stock having a longitudinal opening to re ceive the ratchet pawl and teeth for engage ment with those of the pawl and aspring hetween the stock and the ratchet pawl normally holding the latter in engaged position.

In testimony whereof I allix my signature in presence i two witnesses.

ELMER G. HAIYULTON.

Witnesses JOHN r1. JENNINGS, S. H. JENNINGS. 

